array (LaTeX environment)

LaTeX markup...	...results in:	...is used for:
`\begin{array}{\|l\|cr} left1 & center1 & right1\\ \hline d & e & f \end{array}`	$ \begin{array}{\|l\|cr} left1 & center1 & right1\\ \hline d & e & f \end{array} $	array. `\|l\|cr` means left-align, center, and right align columns; vertical bars before and after first column. \hline draws a horizontal line.
`\begin{array}{lcl} z & = & a \\ & = & a \\ f(x,y,z) & = & x + y + z \end{array}`	$ \begin{array}{lcl} z & = & a \\ & = & a \\ f(x,y,z) & = & x + y + z \end{array} $	using an array to align equations

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